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https://issues.apache.org/jira/browse/NIFI-5577?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mark Payne resolved NIFI-5577.
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Resolution: Fixed
Fix Version/s: 1.8.0
> Component revision number can be incorrectly changed during a failed update
> ---------------------------------------------------------------------------
>
> Key: NIFI-5577
> URL: https://issues.apache.org/jira/browse/NIFI-5577
> Project: Apache NiFi
> Issue Type: Bug
> Affects Versions: 1.7.1
> Reporter: Bryan Bende
> Assignee: Bryan Bende
> Priority: Minor
> Fix For: 1.8.0
>
>
> When an update of a component throws an exception, the revision number is
> incorrectly set to whatever the client passed in, and since clients are
> allowed to keep making requests without the latest revision number this means
> the revision number can incorrectly set back to some lower number.
> Steps to reproduce...
> * Create a GenerateFlowFile processor and get back revision 1
> * Change the name three times and get to revision 4
> * Submit an update where the revision is 1 and set the state to RUNNING
> which should fail because the component is invalid
> * Perform a GET for the processors and notice the revision is now 1 and not 4
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